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Measurement of interleukin-33 (IL-33) and IL-33 receptors (sST2 and ST2L) in patients with rheumatoid arthritis.

TLDR
IL-33 is involved in the pathogenesis of RA and may reflect the degree of inflammation in patients with RA, and the levels of IL-33, sST2 and C-reactive protein decreased after conventional disease-modifying antirheumatic drugs treatment in 10 patients with treatment-naïve RA.
Abstract
The interleukin-33 (IL-33)/ST2 pathway has emerged as an intercellular signaling system that participates in antigen-allergen response, autoimmunity and fibrosis. It has been suggested that IL-33/ST2 signaling has been involved in the pathogenesis of rheumatoid arthritis (RA), because IL-33 and its receptor have been specifically mapped to RA synovium. The aim of this study was to determine the levels of IL-33 and sST2 in sera and synovial fluids in patients with RA. The serum level of IL-33 was significantly higher in patients with RA (294.9 ± 464.0 pg/mL) than in healthy controls (96.0 ± 236.9 pg/mL, P = 0.002). The synovial fluid level of IL-33 was significantly higher in RA patients than in osteoarthritis patients. The level of serum sST2 was higher in RA patients than in healthy controls (P = 0.042). A significant relationship was found between the levels of IL-33 and IL-1β (r = 0.311, P = 0.005), and IL-33 and IL-6 (r = 0.264, P = 0.017) in 81 RA patients. The levels of IL-33, sST2 and C-reactive protein decreased after conventional disease-modifying antirheumatic drugs treatment in 10 patients with treatment-naive RA. Conclusively, IL-33 is involved in the pathogenesis of RA and may reflect the degree of inflammation in patients with RA.

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IL-33/sST2 axis in The Cardiovascular System: A Brief Review

TL;DR: This review provides an overview of different aspects of IL-33 and its related receptor, sST2 along with the role ofIL-33/sST2 axis in different cardiovascular diseases.
Journal ArticleDOI

IL-31 and IL-33 in rheumatoid arthritis patients

TL;DR: In this article , the authors investigated clinical and diagnostic significance of IL-31 and IL-33 determination in patients with rheumatoid arthritis (RA) and revealed positive correlation of clinical and laboratory parameters of RA with cytokine concentration.
Journal ArticleDOI

Non-cardiac Conditions Which Can Elevate The Serum Levels of sST2.

TL;DR: Serum sST2 levels serve as a biomarker for the severity in bronchial asthma such as pneumonia and sepsis and is the best prognostic biomarker in the cases of heart failure to predict risk stratification and is even better than galectin-3.
References
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Journal Article

Revised criteria for the classification of rheumatoid arthritis.

TL;DR: The Bulletin on the Rheumatic Diseases has published all of the classification criteria for the rheumatic diseases to date, and these new revised classified criteria for rheumatoid arthritis are very important as they should provide understanding of the possibly changing face of rheumatism.
Journal ArticleDOI

IL-33, an interleukin-1-like cytokine that signals via the IL-1 receptor-related protein ST2 and induces T helper type 2-associated cytokines

TL;DR: A member of theIL-1 family, IL-33, which mediates its biological effects via IL-1 receptor ST 2, activates NF-kappaB and MAP kinases, and drives production of T(H)2-associated cytokines from in vitro polarized T( H)2 cells is reported.
Journal ArticleDOI

Role of proinflammatory cytokines in the pathophysiology of osteoarthritis

TL;DR: The current knowledge regarding the role of proinflammatory cytokines in the pathophysiology of OA is discussed and the potential of anticytokine therapy in the treatment of this disease is addressed.
Journal ArticleDOI

Disease-associated functions of IL-33: the new kid in the IL-1 family.

TL;DR: IL-33 is host-protective against helminth infection and reduces atherosclerosis by promoting TH2-type immune responses but can also promote the pathogenesis of asthma by expanding TH2 cells and mediate joint inflammation, atopic dermatitis and anaphylaxis by mast cell activation.
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